Sciatic pain radiates from the lower back or buttock down the back of the leg to the calf or foot — often accompanied by tingling or numbness. The cause is usually an irritated nerve root, frequently due to a disc. The good news: in the vast majority of cases, these symptoms improve on their own over a period of weeks, even without surgery. What's important is to stay active and have the course monitored by a doctor.
Possible causes
Disc-related nerve irritation
The most common cause: a disc bulges and irritates a nerve root, causing pain to radiate into the leg. Even pronounced bulges often regress on their own.
Degenerative narrowing
With age, bony growths or narrowing of the spinal canal can compress the nerve root. Symptoms often increase with walking and improve when bending forward.
Muscular irritation
Tense gluteal muscles can irritate the sciatic nerve and cause similar symptoms radiating into the leg. Such muscular causes respond well to movement and stretching.
Typical steps at the doctor's office
- 1The doctor will first determine how far the pain radiates into the leg and examine nerve function, reflexes, sensation, and strength. This examination shows which nerve root is affected and how pronounced the irritation is.
- 2Without particular abnormalities, immediate imaging is usually not necessary, as the symptoms often resolve on their own. An MRI is used for persistent symptoms, loss of strength, or before possible surgery.
- 3The focus is on movement, targeted physiotherapy, and effective pain relief for the acute phase as prescribed by your doctor. Only a small proportion of those affected ultimately require an intervention.
What you can do yourself
- Stay active as much as possible: bed rest tends to prolong symptoms rather than relieve them.
- Heat relaxes cramped muscles and is perceived as pleasant by many.
- Gentle stretching and mobilization exercises shown by a physiotherapist can relieve pressure on the irritated nerve.
- Avoid heavy lifting and jerky movements during the acute phase, without completely immobilizing yourself.
A doctor's visit is advisable if the radiating pain does not improve after one to two weeks, keeps recurring, or is accompanied by increasing numbness or weakness in the leg. In cases of rapidly progressing loss of strength or bladder and bowel dysfunction, immediate evaluation is necessary.
Frequently asked questions
- Does a herniated disc have to be operated on?
- In the vast majority of cases, no. Most sciatic symptoms improve on their own over weeks, and many disc bulges regress. Surgery is only necessary in cases of persistent, severe loss of strength or certain warning signs.
- Should I rest or stay active?
- Stay active as much as possible. Prolonged bed rest delays recovery. Those who remain active within their pain-free range and do light exercises typically become symptom-free more quickly on average.
- How long do sciatic symptoms last?
- This varies, but for many people the symptoms improve significantly over a few weeks. If they persist longer or loss of strength develops, more targeted investigation is advisable.
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